Death knows no bounds in the DC Multiverse – Katie Cassidy will once again return to Arrow – and it will be as a series regular again! She will return for the final two episodes of this season as Black Siren – the evil Earth-2 version of her original Black Canary, then will be a regular through Season 6. No word on if or how it will affect her regular status on Legends of Tomorrow.

Louis Herthum, who plays Peter Abernathy, father of Dolores (Evan Rachel Wood), will become a series regular on HBO’s Westworld after appearing in six episodes of the show’s debut season.

YouTube and go90 star Anna Akana (Miss 2059) will join the Stitchers team as a recurring character. Akana will play a medical examiner who hits it off with Camille (Allison Scagliotti). Stitchers Season 3 starts June 5th of Freeform.